Packing box



Patented Nov. 20, 1928.

UNITED STA REDMOND H. PANGBORN, OF TACOMA, WASIEIING'ION.

PACKING BOX.

Application filed January 7, 1928. Serial No. 245,109.

This invention relates to an improvement in securing means for packing boxes or cases wherein the parts are more effectively secured together and wherein the securing means is formed so as to present no obstruction to the sliding cooperation of one box piled on the other.

The principal object of the present invention is the provision of a securing element in the form of a metal strip, which element is slightly rounded transversely and has its side and end edges downwardly turned so that in the application of thestrip such. end edges may be forced into the material of the box. The strip is formed to receive appropriate fastening means, as nails or the like, and the apertures formed in the strip for the passage of the securing means is formed by inwardly punching the material so as to leave inwardly projecting portions in conical relation, which portions, in the application of the strip, prevent that portion 01" the strip surrounding the fastening means from being inwardly distorted by the blows on such fastening means, to thereby prevent any irregularity in the surface contour of the facing strip which might tend to interrupt the tree sliding of a companion box thereover.

The invention is illustratedin the accompanying drawings, in which:

Figure 1 is a perspective view of a box with the cover section secured in place by the improved fastening means.

Figure 2 is an enlarged section on the line 22 of Figure 1.

Figure 3 is an enlarged section on the line 3-3 of Figure 4.

Figure dis a broken plan View of one of the securing strips.

The improved securing means comprises a metallic strip 1 of appropriate length and width, said strip being arched or concavo-' convexv in transverse section, as at 2, and

having its side edges 3 turned downwardly into substantial parallelism with the line of application of the strip. The end edges 4; of the strip are also turned downwardly, as at 5, the free edges of the downturned portions 3 and 5 being substantially on the same plane.

The strip is formed at appropriate intervals with openings 6 for the receptionof fastening means, as nails 7. The material of the strip, when forming the opening 6,

forcedinwardly to provide more or less conical extensions 8 depending below the 1nner surface of the strip 1 and terminating in effect slightly above the free edges of the sides and ends 3 and4. v

The strip is designedto be applied to the box to cover a plurality of sections and at any appropriate point, being here shown as arranged to overlie the sections 9 of the top. It is of course understood that the strip may be applied to any and all portions of the box Where it is desired to afiix the parts in appropriate relation one to the other. The nails or like fasteners 7 are passed through the apertures 6 and driven into the material of the box and into the underlying portion to which the top, side or end is to be secured.

It is to be noted that in the application of the securing means, that is, under the blows necessary to apply said securing means, the downturned edges 3 and 5 of the strip are forced for an appreciable distance into the material of the box part to which the strip is applied. Furthermore, it will be noted that under the blows necessary to apply the fastening means and the consequent tendency to indent or bend the strip at such point, such indenting or bending will be effectively prevented by the inturned wall 8 of the nail aperture which, prior to the final driving position, rests upon the surface of the portion of the box to which the strip is to be applied and prevents any indenting or bending of the strip.

As applied, the strip at the sides and ends is embedded in the box and the strip proper is curved slightly upward from such em bedded ends and-sides. There is, therefore, no projection of any kind or character which will prevent the free sliding cooperation in any direction of a superimposed box. The strip is wholly without'projecting corners or edges and the superimposed box, meeting the rounded edge or corner, will simply slide over the rounded contour of the strip without the slightest interruption to free movement. Here again, it is to be noted that by providing means whereby the blows incident to applying the fastening means are prevented from indenting the strip, the surface of the latter is maintained smooth and even and there is no possibility of an interruption to the free sliding of superimposed boxes, which interruption would undoubtedly occur if the strip was indented orbent at one or more of the points where the fastening means are applied.

It will'be understood that, as illustrated, the inturned portions of the sides and edges of the strip may, if desired, be sharpened as illustrated, though obviously if the strip is of thin metal, such sharpening while an advantage is not .necessary to the proper operation of the strip.

The strips are to be constructed of sufiiciently rigid metal to accomplish the purpose desired and are of course to be of appropriate length to cooperate with the particular portion or portions of the box to which they are to be applied.

What I claim to be new is:

A fastening means for boxes or the like,

terial of the strips surrounding the openings being forced inwardly of the strip and terminating above the horizontal plane of the bottom of the sharpened'side edges to provide for projections to engage with the surface of the boX to prevent distortion of the strip under the blows incidenttothe application of the fastening means.

In testimony whereof I affix my signature.

REDMOND H. PANGBORN. 

